Bunsen burner.



No. 658,890. Patented Oct. 2-, I900.

F. M. BROOKS.

BUNSEN BURNER.

(Application filed um. 1 a, 1900.

(No Model.)

Tan-.1-

Inventor Witnesses:

ms N'onms PETERS co, Pnomumo. WASHINGTON, o. c.

UNITED ST TES PATENT OFFICE.

FRANK M. BRooKs, OF NEW YORK, N.

BUNSEN BURNER.

SPECIFICATION forming part of Letters Patent No. 658,890, dated October 2, 1900.

Application filed March 15, 1900. fierial No. 8,719. (No model-J To all whom it may concern.-

Be itknown that I, FRANK M. BROOKS, a citizen of the United States, and a resident of New York, (Brooklyn,) in the county of Kings and State of New York, (having my address at No. 35 Warren street, in the city of New York,) have invented a new and useful Improvement in Bunsen Burners, of which the following is a description, reference being had to the accompanying drawings, in which Figure 1 illustrates a vertical sectional view of the parts of the burner which are involved in the invention. Fig. 2 illustrates a vertical sectional view of a modified construction of the parts. Fig. 3 illustrates a detail of the upper part of the burner.

I have discovered that when the flow of the combined gas and air through the tubular part of the burner is obstructed by the interposition of a partial partition or diaphragm thrown across the tube, owing, as I believe, to the reverse currents or eddies formed by the impact of the .gas and air against the partition or diaphragm a more thorough admixture of the two fluids is obtained, so that their combustion at the flame is more complete and the heat generated increased, and consequently my burner is especially adapt-ed for use in conjunction with the well-known mantles now extensively used.

Referring to the drawings, A represents the tube of the burner; B, the gas-inlet nipple; O C, the air-inlets in the tube, and D the air gate or valve, which is provided with passages E E for the air, which register with the airinlets O O in the tube. The gate is adapted to be turned on the tube somewhat after the manner of a damper, so that the supply of air can be regulated.

F is the upper part of the burner, and G the usual Wire-gauze, stretched across the upper open end and held in place by a ring H, which fits down over-a flange made on the edge of the gauze and clamps it between itself and the sides of the burner.

I is a washer or disk riveted to the central part of the gauze by a rivet J, so that there is left between the inner upper edge of the burner and the outer edge of the disk an annular opening through the gauze, at which the mingled gas and air burns in close contact with the mantle.

The foregoing parts may be made in any appropriate manner.

The feature which characterizes this present invention is the following: K is a plug or partial diaphragm, which may be made of any suitable material and of the desired thickness. L is a hole made centrally through it. This diaphragm is located within the tube, as shown, at the desired spot and rigidly fastened there; The location of the diaphragm should be within the central third of the length of the tube; but its precise location within that third will depend upon conditions such as the pressure or volume of gas supplied, the size of the air-inlets, or the amount of air admitted, so that the proper mixing of the two fluids will be secured. These conditions will vary in different cases, and consequently tests should be made to ascertain the most satisfactory relation of the parts; but the general statement may be made that the size of the tube or the space below the diaphragm should ordinarily be increased with increase in the supply of gas; also, that the proper regulation of the air-supply by adjustment of the gate D will aid in securing desired results.

In Fig. 2 I show a modified construction. In this case the functions of the plug or diaphragm of Fig. 1 are performed by forming an annular inwardly-projecting rib M out of the material from which the tube is made. I prefer the plug form of diaphragm, however, since its location in the tube can be varied,

if desired, whereas the rib of Fig. 2 is necessarily immovable, and burners so made can be used in one locality or under substantially the same conditions only.

It will be noted that in order to afford space below the diaphragm in which the reverse air and gas currents or eddies may circulate for the better admixture of the two fluids it is desirable that the tube A should be cylindrical. I do not limit myself to this feature, however, although I prefer it. It will be noted also that my improvement is exceedingly inexpensive and durable.

It will be obvious to those who are familiar with this art that changes may be made in the details of construction without depart ingfrom theessentialsthereof. Ithereforedonotlimit myself to the details as described and illustrated.

I claim-- 1. In a Bunsen burner a tube Within which the air and gas mix, and a diaphragm 0r obstruct-ion to the passage of the fluids having a single central perforation or opening, said diaphragm being located within the central longitudinal third of said tube, for the purposes set forth.

2. In a Bunsen burner a tube within which the air and gas mix, a diaphragm or obstruction to the passage of the fluid, having a single centrally-located perforation or opening, said diaphragm being located within the central longitudinal third of said tube, and means at or near the lower end of the tube to regulate the supply of air, for the purposes set forth.

In a Bunsen burner a tube within which the airand gas mix, a ledge or obstruction projecting radially into the tube leaving a single central opening through the same, said ledge being located 'within the central longitudinal third of the tube, whereby reverse currents or eddies of the fluids are generated, for the purposes set forth.

Signed at New York, in the county of New York and State of New York, the 8th day of March, A. D. 1900.

FRANK M. BROOKS.

Witnesses:

PHILLIPS ABBOTT, WALTER H. CRITTENDEN. 

